America's economy boomed.
To provide food and shelter for the slum-dwelling poor
Because they are racist and racist people love people who are racist like them and so they gain popularity like that
This is a bit tricky, but in general, it is climate change that is the source of the greatest disagreement among American politicians, because some people still think it doesn't exist.
Answer:
New England colonies: House workers like maids.
Middle colonies: House workers and farm slaves in lands owned by their owners
Southern colonies: Farm slaves